Oversized version of the BSD Stacked stem. The Stacked OS stem has been machined internally to save weight and features BSD's gorilla grip system which has a larger 25.4mm clamping diameter to work with Oversized handlebars..

BSD OS Gorilla Grip system.

The stem clamping area diameter is increased from 7/8" (22.2mm) to 1" (25.4mm). This increase in diameter gives 14% more clamping area than on regular 7/8" handlebars, so when you're nose diving down a 12 set your bars are less likely to slip...

One of the best looking stems I've had. Perfect in terms of sizes, nice reach and height. Only issue I had was the paint in the clamping area was smooth which made my bars slip. Had to file the paint off to make the surface rough to stop the bars slipping on me.